Hand stamp



p 0, 193.2. H. SMALLMAN 1,878,900

HAND S TAMP Filed June 12. 1930 Patented Sept. 20, 1932 UNITED STATES PENDENT MANUFACTURING COMPANY, OF

CORPORATION OF PENNSYLVANIA PATENT OFFICE HARRY SMALLMIAN, F PHILADELPHIA, PENNSYLVANIAfASSIGNOR TO HIIIIr-INDE- rHIL nELrnIA, PENNSYLVANIA, A

HAND STAMP Application filed June 12,

My invention relates to improvements in hand stamps.

The object of my invention is to provide a hand stamp with means for regulating the tension of the bands which carry the printing characters.

Heretofore, such stamps have been commonly made and used for date stamps, but

the fault with such stamps hasbeen that with position for use.

In the accompanying drawing:

Fig. 1 is a perspective view of the assembled device;

Fig. 2 is a vertical cross section;

Fig. 3 is a transverse vertical cross section;

Fig. 4'is a disassembled perspective view of saddle and nut; and

Fig.6 is a detached perspective view of print bar.

The main frame of the device is made of one piece of sheet metal which is bent into the proper shape. The sheet metal is bent so as to have a flat top portion 2 and two arms 4 perpendicular thereto. The outward ends of the arms 4 are notched as at 6 to engage the print bar 8, over which the print bands 10, which carry the characters 12, ride and are held in proper position to be used.

The print bar 8 has shoulders 14 to engage the inner sides of the arms 4 and lugs 16 to engage the outer sides thereof, thereby holding the bar 8 firmly in position. 7 p

The bands 10 pass over the bar 8 at the outer ends of the arms 4, the inner ends of the bands passing over the knurled rollers 18, each of which is permanently secured t a knurled wheel 20.

The knurled rollers 18 are mounted on the shaft 22, which is guided at either end by the groove 24, which groove is formed by the 1930. Serial No. 460,677

stamped off-set 25 in the arms 4. Theshaft 22 is held in position and pulled against the force of the print bands by the saddle 26,

through the holes 27 of which the shaft 22 passes, the saddle straddling two of the rollers 18 on the center ofthe shaft. The nut 28 passes through the hole'30 in the saddle, which hole fits the fiat sides of the nut to prevent the latter from turning,the shoulders 32 of the nut'engaging on the inside of the saddle.

The nut passesthrough the top portion 2. of the frame and'is engaged by the. bolt 34 which passes throughthe handle 36 rigid ly secured thereto, which handle has a recess 38 at its inner end providing clearance space for the nut 28 when the same is ,pulled through the saddle 26 and the top plate 2 of the main frame by the turning'of the handle 36 and the bolt 34. The inner end of the handle bears and turns on the plate '2 of the main frame. a

1 By turning the handle 36 in-a clockwise direction, the nut 28 will .be drawn through the top plate 2, thus pulling the saddle 26 and the shaft 22, which .inturn will pull against the print bands 10 whichare carried on the rollers 18 on the shaft 22. Theother ends of. the print bands 10 ride over the print bar 8 and are thus held tightly in position, since the print bar8 may not be moved toward the handle 36. In other words, the tension on the bands 10 is applied or re: leased with substantial uniformity, bysim- .ply turning the handle 3,6-to the right, or

It will be readily understood that my invention may be used for any kind of hand stamp,'where it is desirable to change the printing characters from time to time and is not limited to the particular form shown which is a date stamp.

I claim:

1. A hand stamp comprising a printing band roll, a saddle supporting the roll and.

having an opening in the top thereof, a nut having a portion extending through the opening and supporting the saddle, and a handle having screw-threaded connection with the V nut for adjusting the position of the saddle.

2. A hand stamp comprising a printing band roll, a shaft therefor, a saddle supporting the shaft and having an irregular shaped opening in the top thereof, a nut having a flattened portion fitting and extending through the opening and supporting the saddle, and a handle provided with a rod having screw-threaded engagement with the nut for adjusting the positionof the saddle. 3. In a hand stamp, a'printing band roll,

a saddle supporting said roll, and having an opening therein, a nut having a portionextending through the opening, lugs formed on the inner end of the nutfor supporting the saddle, means for preventing relative turning between the saddle andnut, and a handleprovided with a rod having screwth'readed engagement with the nut for ad'- justing the position of the saddle.

4; A hand stamp comprising a frame having an opening in the top thereof, printing band rolls, a shaft extending through said rolls, a saddle supporting said rolls and having an irregular shaped opening therein, a nut having a portion extending through the opening in the saddle and the top of the frame-,'lugs formed-on one side of the nut for-supporting the saddle, and a handle provided with a rod having screw-threaded engagement with the nut for adjusting the position of the saddle.

5. 'A device of the character described ineluding a substantially U-shaped frame, a bar extending between the arms of said frame, said arms having guides throughout substantially their entire length, a shaft mounted between said arms and slidable on the said guides, a plurality of rollers carried by said shaft, and endless print bands extending over said rollers and bar.

1 -6. A device of the character described in cluding a one-piece metal frame, bent to substantially U-shape, a bar extending over the outer ends of the U-shaped frame, grooves formed in the inner sides of: the arms of the frame, and extending to the outer ends thereof, rollers mounted Within said frame and carried on a shaft, the outer ends of said shaft sliding Within said grooves, print bands carried by said rollers and bar, andmeans for changing the position of said shaft relative to said bar. c V

' In testimony'whereof I afiix my signature. HARRY S MALLMAN. 

